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How to return to default setting for Dynamo mod?

Default setting means bringing all the adjustable settings data and interface to default as original the firmware setting at the beginning, except for the time. First press fire button and up button simultaneously to enter main interface, select “System”, then press the fire button to enter the system interface. Press up or down buttons to select “Default”, press the fire button to enter the default setting interface, press up or down button to choose ”Yes” and fire button to confirm.